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40 lines
606 B
C
40 lines
606 B
C
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/* Trivial test of critical sections. */
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/* { dg-require-effective-target sync_int_long } */
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#include <omp.h>
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#include <sys/time.h>
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#include <unistd.h>
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#include <assert.h>
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#include "libgomp_g.h"
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static volatile int test = -1;
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static void function(void *dummy)
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{
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int iam = omp_get_thread_num ();
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int old;
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GOMP_critical_start ();
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old = __sync_lock_test_and_set (&test, iam);
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assert (old == -1);
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usleep (10);
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test = -1;
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GOMP_critical_end ();
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}
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int main()
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{
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omp_set_dynamic (0);
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GOMP_parallel_start (function, NULL, 3);
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function (NULL);
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GOMP_parallel_end ();
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return 0;
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}
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